A) can be defined as a response to stimuli.
B) is limited to innate responses.
C) can be separated into three distinct categories.
D) is easy to define and study
E) is all of these.

A) a synapse
B) the peripheral nervous system.
C) a neurotransmitter.
D) an endorphin.
E) a receptor.

A) individuals overproduce the FMRP protein.
B) females are more likely to be affected than males.
C) the X chromosome has undergone a translocation.
D) the mutated gene is located on the Y chromosome.
E) the mutated site on the X chromosome leads to chromosomal breaks.